Consider the following code which uses Python to call the ‘fork’ system call.
pid = os.fork()
if (pid == 0) :
# case 1
else :
# case 2

Select all of the following statements that are true (incorrect selections will reduce your overall marks for this question).

Question

Consider the following code which uses Python to call the ‘fork’ system call. 
   pid = os.fork()
  if (pid == 0) : 
       # case 1
  else :
       # case 2 
 
 Select all of the following statements that are true (incorrect selections will reduce your overall marks for this question).

Accepted Answer

A zombie process can be created if an appropriate wait function is not included in the code for case 2.

Answer

All zombie processes are orphan processes.

Answer

We can kill a zombie process from a Unix/Linux terminal by using the  kill  command with the zombie process id.

Answer

The process with pid=1 ('init' process) periodically issues the wait system call to collect the exit status of its children processes.

Answer

Zombie processes are troublesome because they can consume a lot of memory.

Answer

A zombie process can be created if an appropriate wait function is not included in the code for case 1.

Crowdly

Consider the following code which uses Python to call the ‘fork’ system call. ...

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